Comb



R. C. SMITH coun F1154 Nov. s, 1923 2 Shoots-Shut 2 Patented oct. 27,1925. n :r.-

UNITED STATES-PATENT OFFICE.A

ROBERT C. SMITH, 0E CLEVELAND, oHIo, AssIGNOR To THE CLEVELAND TRUSTrANv, A CORPORATION OF OHIO.

Application filed November To all whom t may Concern." j

Be it known that I, ROBERT C. SMITH, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State of Ohio, haveinvented a .certain'new and useful Improvement in a Comb, of which'thefollowing is a full, clear, and exact description, reference being hadto the accompanying drawings. f

This invention relates to hair combs and .has particular reference to ametallic comb which is adapted for use, when heated, yin treating hair.Y

In certain hair treatments, a heated comb is passed through the hair andfrom the top of the head downwardly, and accordingly, the shape of thecomb as well as the manner in which .it is used are importantconsiderations. For example, the comb must bey shaped so that the heatedpoints will not engage the scalp, and must be so formed that strands ofhair will not be caught when the comb is being used. Accordingly it isde-'IY sirable to make the contactingsurface convex, andto so arrangethe holder that the junction between the holder" and comb is out ofContact with the hair, thus enabling the comb to be used with ease andsafety.

My invention therefore, is directed toward the attainment of thedesirable above set forth, and toward the provision of a comb which maybe readily removed from the holder.

VOther features will hereinafter become;

apparent in the following description which pertains to the drawings,and the essential,l characteristics will be summarizedr in the claims.

Fig. adapted to be to left.. Fig. showing the comb member in theopposite direction. are sections taken on the lines 3--3 and 1 -4 inFigs. 1 and 2 respectively; and Fig. 5 is a section showing amodified-form of teeth construction;v Fig. 6 is an elevation of amodified formv of the comb which has a self-contained electric heatingF-ig. is .an end elevation of the comb il- ',l11stratedinIT`ig. 6,' Fig8 dis a section taken 1 is a side elevation of the comb used whenstroking from right 2 is a similar side elevation reversed for usefeatures j Figs. 3 and 4v rounded portions element;

COM-

Coma.

5, ,1923. serial No. 672,809.

on the line 8 8 of Fig. 6; Fig. 9 is a longitudinal section taken on theline 9 9 of Fig. 6; Fig. 10 is an enlarged section of the Core head.

Designating the parts in the drawings the use of reference characters,10 indi,

Cates a holder adapted toreceive a body 11 of a comb having teethindicated generally at 12. r1`he holderfmay be provided with suitablemeans for attachment to a handle 13 as indicatedin Figs. l and 2. Theholder and comb are preferably b oth of metal while the handle is formedof heat insulating material. f j

In Figs. 3 to 5, the body of the comb is shown as a bar which is shapedto slide within a groove 14 within the holder, andl to be held thereinby means of a set-screw 15 extending through the outer face of theholder. The exterior of the holder is provided with outwardly projectingportions, as at 16 and 17. That portionV of the holder 'extendin towardthe comb from the points 16 and 1 is ltapered sharply, as at 18, and 19,toward the teeth of the comb, and then rounded as at 20 and 21, adjacentthe point of engagement with the comb. In this way, the comb and holderform a two-point contact upon the hair of the user, thus decreasingthetendency for strands of hair to enter the joint between thecomb andholder. In FigsV 3 and 4 the curved lines A--A and B-B represent thecurvature of a head on which the comb is being used, and in theseviews,V itwill be noticed that the junction between the comb and holderis out of contact with the curved'lines. f

A convenient method of forming teeth is by Cutting a number of uniformlyspaced slots in a blank, the material remaining after such slotting thusforming the teeth. The burr orsharp corners sometimes left at the baseof slots so formed and which might rhave a tendency to cut the strandsof hair is disposed rearwardly of the overhanging 2O and 21 of theholder as shown. Thus the diicult operation of removing suchburr iseliminated. j

The surface on the teeth which is adapted to engage the hair as shown inFigs. 3 and 4, at convex, while the Opposite side as at is concave. Thesurface 26 is curved gradually to the point of the teeth, while thesurface Q5 extends approximately parallel to the contacting' surface,and then is curved abruptly upwardly toward the surface 2G. This forms aconvenient ramp for enabling one to pass the comb quickly and easilyover the hair.

'l he shape of the teeth, that is, the `curvature of the points awayfrom the scalp is particularly desirable to prevent injury. In use,however, the right and left hand curved teeth must be employed to obtainthe results desired. The reversible feature therefore, enables one tosatisfactorily use the comb on both sid-es of the head.

A comb having curved teeth as above described ina-y be satisfactorilyused by an individual merely. by reversing the position of the teethwithin the holder therefor. 'Io obviate the. necessity for such{rever-sing operation however, I have shown a modified form ofconstruction in Fig. 5, wherein both surfaces a and 26@ are convex. Therenziaining construction is the same as heretofore described. lVith.this modified type of construction, the engagement with the hair is`effected at two points, thus decreasingr the tendency for strands ofhair to enter the joint between the body and the holder therefor.

In the inodilied form illustrated in Figs..

G to l0, I have shown the comb described above with electric means forheating. In the drawings l0 indicates a holder adapted to receive abodyil of a comb having teeth indicated generally at 12. The back. portion'is removably dovetailed to the holder as before and may be secured tothe holder L03 byj a set screw l5".

In. this form I have shown the holder of somewhat differentcrossssection and have provided within it a recess counterbored as at3l, for receiving the heating element while at one end it is externallythreaded at 36 for attaching a handle. The handle is also recessed as at43 for containing the conductor wires andk is adapted to be secu-red tothe comb holder by a collar threaded on the end portion of the holderand secured to the handle in any manner as by bradsv 37.

In Fig. 9, the holder and comb are preferably both of metalv while thehandle is formed of heat insulating material. Fig. G yshows the cord 40entering the handle through the usual strengthening coil of. spring wirel larger in diameter at 42' within the central bore i3 of the handle.

The core may be formedy ofv porcelain or other heat resisting materialand has an elongated reduced portion 53 spirally grooved to receive theheating-coil 55. The enlarged shank portion 52 is adapted to receivebinding posts or bolts 46 and 47 to'I which the ends of the resistancecoil and the conductor wires attach. In the forni shown I have provideda jacket of mica or similar material 5l entirely surrounding the corethus further insuring complete electrical insulation of the heatingcoils from the holder.

It will be noted' that thebolts or binding posts 46 and 47 are set atright angles to each other a little distance apart and that the roundshank of the core is cut away as at 58 to provide space for theterminals of the conductor wires and clamping faces beneath the headsand nuts of the binding posts i6 and 47. Suitable holes as 56 and 57communicate with the reduced portion 53 of the core and through these,lthe ends of the heating coils communicate with their respective bindingposts as shown. It will be noticed that I have shown the hole 57,running entirely through the reduced portion of the core thus obviatingthe necessity of providing an velaborate insulating return conduitbetween the coils and the wall of the holder. It is to be understoodthateither of the forms of teeth shown in Figs. 3 and 5 may be used withthis type of holder.

Inview of the foregoing description, it will be seen that my inventionprovides a metallic comb which, when heated, may be passed through thehair without danger of injury to the scalp, and without catching thehair of the user.

l. In a device of the character described, the combina-tion with aholder having a longitudinally extending undercut groove therein and'having laterally 'extending eX- terior portion, a member complementaryto the groove slidable therein, said 'member having teeth with a convexsurface projecting therefrom, the base portion of the teeth lying withinthe groove, whereby the joint between the holder and' the member is outof contact with the surface to be` combed and whereby cutting edges atthe base of the teeth are concealed.

2.' In a device of the character described, the combinationl with aholder having a longitudinally extending undercut groove therein open atone end and having the eX- terior tapered from the mid-portion' to thegroove, a member complementary to the groove and slidable therein, saidmember having a series of teeth projecting therefrom, the base of saidteeth lying within the groove and at least one surface of. the teethbeing convex, whereby a portion of the convex surface adjacent themid-portion of the holder engages the surface to be combed, and wherebythe joint between the holder and memberA is out of contact with thesurface to be combed.

3. In a comb, the. combination of an electrical heating coil., anelongated heat conducting casing surounding the coil, and pro- Contactwith the surfaces of the easing slidevided with a longitudinallyextending s1ide Way, whereby a maximum heat conductivity Way, aremovable and reversible metallic between the casing and comb membei1may 10 comb member provided With a slide poibe aSSUlQCli tion forattaching the comb member to the In testimony \\'he1'eo'f, I hereuntoaffix my easing member in the slideway, the surface @gnatureof the slidebeing formed to afford intimate ROBERT C. SMITH.

